Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K8CAO callsign genealogy
Currently held by Osborne, Chris
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by K8CAO's current licensee, walking backwards.
- Osborne, ChrisOHgranted 2021-04-19cancelled 2021-05-08
Successor callsigns
Callsigns held now by people who previously held K8CAO.
No current licensee on record previously held this callsign.